input handlers

.editorconfig

@@ -3,11 +3,13 @@ root = true
 
 [*]
 charset = utf-8
-indent_style = space
-indent_size = 2
+indent_style = tab
 insert_final_newline = true
 trim_trailing_whitespace = true
 
+# Add this to help VSCode and Copilot use tabs for indentation
+indent_size = tab
+
 [*.ts]
 quote_type = single
 ij_typescript_use_double_quotes = false

.vscode/settings.json

@@ -1,8 +1,11 @@
 {
 	"json.schemas": [
 		{
-      "fileMatch": [ "src/assets/data/*.json" ],
+			"fileMatch": ["src/assets/data/*.json"],
 			"url": "./schemas/gdRoot.json"
 		}
-  ]
+	],
+	"editor.insertSpaces": false,
+	"editor.detectIndentation": false,
+	"editor.tabSize": 4
 }

src/.prettierrc

@@ -1,4 +1,4 @@
 {
-  "tabWidth": 4,
-  "useTabs": true
+	"useTabs": true,
+	"printWidth": 9999
 }

src/app/components/game/game.component.html

@@ -12,6 +12,7 @@
 			<button (click)="step()">Step</button>
 			<button (click)="fastForward()">⏭ Fast Forward</button>
 			<div>Step: {{ simMain.currentStep }}</div>
+			<button (click)="startNextWave()">Start next wave</button>
 			<button (click)="openOptions()">Options</button>
 		</div>
 	</div>

src/app/components/game/game.component.ts

@@ -5,6 +5,7 @@ import { GdRoot } from './data/GdRoot';
 import { SimCommand } from './sim/commands/SimCommand';
 import { VisMain } from './vis/VisMain';
 import { SplashComponent } from '../splash/splash.component';
+import { SimCommandStartNextWave } from './sim/commands/SimCommandStartNextWave';
 
 @Component({
 	selector: 'app-game',
@@ -27,7 +28,6 @@ export class GameComponent {
 		const gdRoot = await this.loadGdRoot();
 		this.simMain.setGdRoot(gdRoot);
 		this.visMain = new VisMain(this.simMain, SplashComponent.assetPreloader, this.wrapperRef.nativeElement, this.canvasRef.nativeElement);
-		window.addEventListener('resize', _ => this.visMain.onResized());
 	}
 
 	start() {
@@ -35,15 +35,24 @@ export class GameComponent {
 	}
 
 	stop() {
-		this.visMain.start();
+		this.visMain.stop();
 	}
 
 	step() {
 		this.simMain.step();
+		this.visMain.onRender();
 	}
 
 	rewind() {
-		//this.simMain.rewindToZero();
+		if (this.simMain.currentLevel)
+			this.simMain.currentLevel.currentStep = -1;
+		
+		this.simMain.currentStep = -1;
+	}
+
+	startNextWave() {
+		this.simMain.addCommand(new SimCommandStartNextWave());
+		this.simMain.currentLevel!.paused = false;
 	}
 
 	fastForward() {

src/app/components/game/sim/SimLevel.ts

@@ -1,11 +1,11 @@
-import { GdRoot } from "../data/GdRoot";
-import { EDirection } from "../util/EDirection";
-import { Hex } from "../util/Hex";
-import { PathFinding } from "../util/PathFinding";
-import { ECellType } from "./ECellType";
-import { SimCell } from "./SimCell";
-import { SimEnemy } from "./SimEnemy";
-import { SimProjectile } from "./SimProjectile";
+import { GdRoot } from '../data/GdRoot';
+import { EDirection } from '../util/EDirection';
+import { Hex } from '../util/Hex';
+import { PathFinding } from '../util/PathFinding';
+import { ECellType } from './ECellType';
+import { SimCell } from './SimCell';
+import { SimEnemy } from './SimEnemy';
+import { SimProjectile } from './SimProjectile';
 
 export class SimLevel {
 	paused: boolean = true;
@@ -62,7 +62,7 @@ export class SimLevel {
 		});
 
 		this.updatePaths(gdRoot);
-    };
+	}
 
 	public getCellIndex(hex: Hex) {
 		const x = hex.col + this.radius;
@@ -105,19 +105,16 @@ export class SimLevel {
 		try {
 			if (!!hexToBlock) {
 				const reservedCell = this.cells[this.getCellIndex(hexToBlock)];
-                if (reservedCell.type != ECellType.Free || !!reservedCell.tower)
-                    return false;
+				if (reservedCell.type != ECellType.Free || !!reservedCell.tower) return false;
 
 				reservedCell.type = ECellType.Reserved;
 			}
 
 			return this.updatePaths(gdRoot);
-        }
-        finally {
+		} finally {
 			if (!!hexToBlock) {
 				const reservedCell = this.cells[this.getCellIndex(hexToBlock)];
-                if (reservedCell.type == ECellType.Reserved)
-                    reservedCell.type = ECellType.Free
+				if (reservedCell.type == ECellType.Reserved) reservedCell.type = ECellType.Free;
 			}
 		}
 	}

src/app/components/game/sim/SimMain.ts

@@ -36,29 +36,29 @@ export class SimMain {
 	}
 
 	executeUntilStep(target: number) {
-		this.currentStep = 0;
 		while (this.currentStep < target) {
 			this.step();
 		}
 	}
 
 	step() {
-		const nextStep = this.currentStep + 1;
+		this.currentStep++;
+		if (this.currentLevel && !this.currentLevel.paused) {
+			this.currentLevel.currentStep++;
+		}
 		
-		// Get all commands for this step
-		const commands = this.commandHistory.filter((c) => c.step === nextStep);
-
-		this.currentStep = nextStep;
 		for (const action of this.actions) {
 			action.execute(this);
 		}
 
+		const commands = this.commandHistory.filter((c) => c.step === this.currentStep);
 		for (const cmd of commands) {
 			cmd.execute(this);
 		}
 	}
 
 	addCommand(command: SimCommand) {
+		command.step = this.currentStep + 1;
 		this.commandHistory = this.commandHistory.filter(
 			(c) => c.step < command.step
 		);

src/app/components/game/sim/actions/SimActionSpawnEnemies.ts

@@ -1,17 +1,23 @@
-import { EEnemySize } from "../../data/EEnemySize";
-import { SimCommandStartNextWave } from "../commands/SimCommandStartNextWave";
-import { SimEnemy } from "../SimEnemy";
-import { SimMain } from "../SimMain";
-import { ISimAction } from "./ISimAction";
+import { EEnemySize } from '../../data/EEnemySize';
+import { SimCommandStartNextWave } from '../commands/SimCommandStartNextWave';
+import { SimEnemy } from '../SimEnemy';
+import { SimMain } from '../SimMain';
+import { ISimAction } from './ISimAction';
 
 export class SimActionSpawnEnemies implements ISimAction {
 	public execute(simMain: SimMain) {
 		const level = simMain.currentLevel;
-        if (!level) return;
+		if (!level) {
+			return;
+		}
 
 		const gdLevel = simMain.gdRoot.levels[level.index];
 		const step = level.currentStep;
 		const gdWave = gdLevel.waves[level.currentWave];
+		if (!gdWave) {
+			return;
+		}
+		
 		let spawnDelay = simMain.gdRoot.simulation.spawnDelay;
 		switch (gdWave.size) {
 			case EEnemySize.Huge:

src/app/components/game/sim/commands/SimCommand.ts

@@ -1,6 +1,7 @@
-import { SimMain } from "../SimMain";
+import { SimMain } from '../SimMain';
 
 export abstract class SimCommand {
 	step: number = -1;
 	abstract execute(simMain: SimMain): void;
+	abstract check(simMain: SimMain): boolean;
 }

src/app/components/game/sim/commands/SimCommandBlockTerrain.ts

@@ -1,7 +1,7 @@
-import { Hex } from "../../util/Hex";
-import { ECellType } from "../ECellType";
-import { SimMain } from "../SimMain";
-import { SimCommand } from "./SimCommand";
+import { Hex } from '../../util/Hex';
+import { ECellType } from '../ECellType';
+import { SimMain } from '../SimMain';
+import { SimCommand } from './SimCommand';
 
 export class SimCommandBlockTerrain extends SimCommand {
 	private hex: Hex;
@@ -17,9 +17,6 @@ export class SimCommandBlockTerrain extends SimCommand {
 
 		const cellIndex = level.getCellIndex(this.hex);
 		const cell = level.cells[cellIndex];
-        if (cell.type != ECellType.Free || cell.tower != null || !level.reservePaths(simMain.gdRoot, this.hex)) {
-            return;
-        }
 		cell.type = ECellType.Blocked;
 		level.updateBlockedType(cell);
 		for (let i = 0; i < 6; ++i) {
@@ -29,4 +26,21 @@ export class SimCommandBlockTerrain extends SimCommand {
 		}
 		level.updatePaths(simMain.gdRoot);
 	}
+
+	public check(simMain: SimMain): boolean {
+		const level = simMain.currentLevel;
+		if (!level) {
+			return false;
+		}
+		const cellIndex = level.getCellIndex(this.hex);
+		const cell = level.cells[cellIndex];
+		if (!cell) {
+			return false;
+		}
+		
+		if (cell.type != ECellType.Free || cell.tower != null || !level.reservePaths(simMain.gdRoot, this.hex)) {
+			return false;
+		}
+		return true;
+	}
 }

src/app/components/game/sim/commands/SimCommandCreateTower.ts

@@ -1,9 +1,9 @@
-import { Hex } from "../../util/Hex";
-import { ECellType } from "../ECellType";
-import { SimEnemy } from "../SimEnemy";
-import { SimMain } from "../SimMain";
-import { SimTower } from "../SimTower";
-import { SimCommand } from "./SimCommand";
+import { Hex } from '../../util/Hex';
+import { ECellType } from '../ECellType';
+import { SimEnemy } from '../SimEnemy';
+import { SimMain } from '../SimMain';
+import { SimTower } from '../SimTower';
+import { SimCommand } from './SimCommand';
 
 export class SimCommandCreateTower extends SimCommand {
 	hex: Hex;
@@ -25,14 +25,6 @@ export class SimCommandCreateTower extends SimCommand {
 		const cell = level.cells[cellIndex];
 		const towerData = simMain.gdRoot.towers[this.index];
 
-        if (cell.type != ECellType.Free) {
-            return;
-        }
-
-        if (cell.tower != null) {
-            return;
-        }
-
 		level.enemies.forEach((enemy: SimEnemy) => {
 			const hex = Hex.fromWorld(enemy.position);
 			const enemyCellIndex = level.getCellIndex(hex);
@@ -51,4 +43,33 @@ export class SimCommandCreateTower extends SimCommand {
 			level.updatePaths(simMain.gdRoot);
 		}
 	}
+
+	public check(simMain: SimMain): boolean {
+		const level = simMain.currentLevel;
+		if (!level) {
+			return false;
+		}
+
+		const cellIndex = level.getCellIndex(this.hex);
+		const cell = level.cells[cellIndex];
+		if (!cell) {
+			return false;
+		}
+		
+		const towerData = simMain.gdRoot.towers[this.index];
+
+		if (cell.type != ECellType.Free) {
+			return false;
+		}
+
+		if (cell.tower != null) {
+			return false;
+		}
+
+		if (level.currency < towerData.cost) {
+			return false;
+		}
+
+		return true;
+	}
 }

src/app/components/game/sim/commands/SimCommandStartNextWave.ts

@@ -1,13 +1,12 @@
-import { GdRoot } from "../../data/GdRoot";
-import { SimLevel } from "../SimLevel";
-import { SimMain } from "../SimMain";
-import { SimCommand } from "./SimCommand";
+import { SimMain } from '../SimMain';
+import { SimCommand } from './SimCommand';
 
 export class SimCommandStartNextWave extends SimCommand {
-
-    execute(simMain: SimMain) {
+	public execute(simMain: SimMain) {
 		const level = simMain.currentLevel;
-        if (!level) return;
+		if (!level) {
+			return;
+		}
 
 		const data = simMain.gdRoot.levels[level.index];
 		level.currentWave += 1;
@@ -19,4 +18,12 @@ export class SimCommandStartNextWave extends SimCommand {
 		level.lastEnemySpawnStep = level.currentStep;
 		level.enemiesLeftToSpawn = data.waves[level.currentWave].amount;
 	}
+
+	public check(simMain: SimMain): boolean {
+		const level = simMain.currentLevel;
+		if (!level) {
+			return false;
+		}
+		return true;
+	}
 }

src/app/components/game/vis/VisLevel.ts

@@ -27,6 +27,7 @@ export class VisLevel {
     private simMain: SimMain;
     private gdRoot: GdRoot;
     assets: AssetPreloaderService;
+    private hoveredHex: Hex | null = null;
 
     constructor(visMain: VisMain, simMain: SimMain, gdRoot: GdRoot, assets: AssetPreloaderService) {
         this.assets = assets;
@@ -60,6 +61,15 @@ export class VisLevel {
         this.drawBackground();
         ctx.globalCompositeOperation = "source-over";
 
+        // Highlight hovered cell first (under everything else)
+        if (this.hoveredHex) {
+            const hoveredIdx = simLevel.getCellIndex(this.hoveredHex);
+            const hoveredCell = simLevel.cells[hoveredIdx];
+            if (hoveredCell && hoveredCell.distance <= gdLevel.radius) {
+                this.drawCellImage(ctx, hoveredCell, "cell-highlighted.svg");
+            }
+        }
+
         simLevel.cells.forEach((cell: SimCell) => {
             if (cell.distance > gdLevel.radius) {
                 return;
@@ -161,6 +171,10 @@ export class VisLevel {
         this.lastStep = currentStep;
     }
 
+    public setHoveredHex(hex: Hex | null) {
+        this.hoveredHex = hex;
+    }
+
     public getScreenCoords(hex: Hex): Vector2 {
         const coord = Hex.toPixel(hex, this.hexSize);
         return new Vector2(coord.x + this.screenXOffset - this.screenCellWidth / 2, coord.y + this.screenYOffset - this.screenCellHeight / 2);

src/app/components/game/vis/VisMain.ts

@@ -1,7 +1,10 @@
-import { AssetPreloaderService } from "../../../assetPreloaderService";
-import { SplashComponent } from "../../splash/splash.component";
-import { SimMain } from "../sim/SimMain";
-import { VisLevel } from "./VisLevel";
+import { AssetPreloaderService } from '../../../assetPreloaderService';
+import { SimMain } from '../sim/SimMain';
+import { VisLevel } from './VisLevel';
+import { Vector2 } from '../util/Vector2';
+import { InputHandler } from './input/InputHandler';
+import { Hex } from '../util/Hex';
+import { DefaultInputHandler } from './input/DefaultInputHandler';
 
 export class VisMain {
 	canvas: HTMLCanvasElement;
@@ -9,28 +12,31 @@ export class VisMain {
 	wallPattern: CanvasPattern;
 	visLevel: VisLevel;
 	simMain: SimMain;
-    private startTimestamp: number = 0;
-    private active: boolean = true;
-    private ready: boolean = false;
-    private gap: number = 0;
+	active: boolean = true;
 	assets: AssetPreloaderService;
 	wrapper: HTMLDivElement;
+	inputHandlers: InputHandler[] = [];
+	private startTimestamp: number = 0;
+	private ready: boolean = false;
+	private gap: number = 0;
 
 	constructor(simMain: SimMain, assets: AssetPreloaderService, wrapper: HTMLDivElement, canvas: HTMLCanvasElement) {
 		this.assets = assets;
 		this.simMain = simMain;
 		this.canvas = canvas;
 		this.wrapper = wrapper;
-        this.context = this.canvas.getContext("2d")!;
-        this.context.globalCompositeOperation = "source-over";
-        this.wallPattern = this.createPattern(assets.getImage("images/wall.png"), 48);
+		this.context = this.canvas.getContext('2d')!;
+		this.context.globalCompositeOperation = 'source-over';
+		this.wallPattern = this.createPattern(assets.getImage('images/wall.png'), 48);
 		this.visLevel = new VisLevel(this, this.simMain, this.simMain.gdRoot, assets);
+		this.setupInput();
 		this.start();
+		this.inputHandlers.push(new DefaultInputHandler(this));
 	}
 
 	private createPattern(image: HTMLImageElement, size: number): CanvasPattern {
-        const tempCanvas = document.createElement("canvas");
-        const tempContext = tempCanvas.getContext("2d")!;
+		const tempCanvas = document.createElement('canvas');
+		const tempContext = tempCanvas.getContext('2d')!;
 
 		tempCanvas.width = size;
 		tempCanvas.height = size;
@@ -48,24 +54,19 @@ export class VisMain {
 			this.step(timestamp);
 		});
 
-        if (!this.startTimestamp) {
-            this.startTimestamp = timestamp;
-        }
-
 		const simLevel = this.simMain.currentLevel;
 		if (!simLevel) {
 			return;
 		}
 
-        let targetStep = (timestamp - this.startTimestamp) * this.simMain.gdRoot.simulation.stepsPerSecond / 1000 - this.gap;
+		let targetStep = Math.floor(((timestamp - this.startTimestamp) * this.simMain.gdRoot.simulation.stepsPerSecond) / 1000 - this.gap);
 		if (simLevel.paused) {
-            this.gap += targetStep - simLevel.currentStep;
-            targetStep = simLevel.currentStep;
+			this.gap += targetStep - this.simMain.currentStep;
 		}
 		this.simMain.executeUntilStep(targetStep);
 		this.visLevel.updateEveryFrame(targetStep);
 		this.onRender();
-    };
+	}
 
 	public onResized() {
 		// Always get the latest wrapper size
@@ -82,12 +83,12 @@ export class VisMain {
 		this.context.scale(ratio, ratio);
 
 		this.visLevel.updateSize();
-    };
+	}
 
-    private onRender() {
+	onRender() {
 		this.clear();
 		const ctx = this.context;
-        ctx.font = "12px Tahoma";
+		ctx.font = '12px Tahoma';
 		const simLevel = this.simMain.currentLevel;
 		if (!!simLevel) {
 			if (!this.ready) {
@@ -96,7 +97,7 @@ export class VisMain {
 			}
 			this.visLevel.draw();
 		}
-    };
+	}
 
 	private clear() {
 		this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
@@ -109,7 +110,57 @@ export class VisMain {
 	start() {
 		this.active = true;
 		requestAnimationFrame((timestamp: number) => {
+			this.startTimestamp = timestamp - (this.simMain.currentStep / this.simMain.gdRoot.simulation.stepsPerSecond) * 1000;
 			this.step(timestamp);
 		});
 	}
+
+	private setupInput() {
+		this.canvas.addEventListener('mousedown', (e) => this.handleMouseDown(e));
+		this.canvas.addEventListener('mousemove', (e) => this.handleMouseMove(e));
+		window.addEventListener('keydown', (e) => this.handleKeyDown(e));
+		window.addEventListener('resize', (_) => this.onResized());
+	}
+
+	private getHexFromMouseCoords(event: MouseEvent): Hex {
+		const rect = this.canvas.getBoundingClientRect();
+		const ratio = this.canvas.width / rect.width;
+		const x = ((event.clientX - rect.left) * ratio) / window.devicePixelRatio;
+		const y = ((event.clientY - rect.top) * ratio) / window.devicePixelRatio;
+		const coords = new Vector2(x, y);
+		const hex = this.visLevel.getHexFromScreenCoords(coords);
+		return hex;
+	}
+
+	private handleMouseDown(event: MouseEvent) {
+		const hex = this.getHexFromMouseCoords(event);
+		for (let i = this.inputHandlers.length - 1; i >= 0; i--) {
+			const handled = this.inputHandlers[i].onMouseDown?.(event, hex);
+			if (handled) {
+				event.preventDefault();
+				return;
+			}
+		}
+	}
+
+	private handleMouseMove(event: MouseEvent) {
+		const hex = this.getHexFromMouseCoords(event);
+		for (let i = this.inputHandlers.length - 1; i >= 0; i--) {
+			const handled = this.inputHandlers[i].onMouseMove?.(event, hex);
+			if (handled) {
+				event.preventDefault();
+				return;
+			}
+		}
+	}
+
+	handleKeyDown(event: KeyboardEvent) {
+		for (let i = this.inputHandlers.length - 1; i >= 0; i--) {
+			const handled = this.inputHandlers[i].onKeyDown?.(event);
+			if (handled) {
+				event.preventDefault();
+				return;
+			}
+		}
+	}
 }

src/app/components/game/vis/input/DefaultInputHandler.ts

@@ -0,0 +1,47 @@
+import { SimCommandBlockTerrain } from '../../sim/commands/SimCommandBlockTerrain';
+import { SimCommandCreateTower } from '../../sim/commands/SimCommandCreateTower';
+import { Hex } from '../../util/Hex';
+import { VisMain } from '../VisMain';
+import { HexInteractionInputHandler } from './HexInteractionInputHandler';
+import { InputHandler } from './InputHandler';
+
+export class DefaultInputHandler implements InputHandler {
+	visMain: VisMain;
+
+	constructor(visMain: VisMain) {
+		this.visMain = visMain;
+	}
+
+	onKeyDown(event: KeyboardEvent): boolean {
+		if (event.code === 'Escape') {
+			if (this.visMain.inputHandlers.length > 1) {
+				this.visMain.inputHandlers.pop();
+				this.visMain.visLevel.setHoveredHex(null);
+				event.preventDefault();
+				return true;
+			}
+		} else if (event.code === 'Space') {
+			if (this.visMain.active) {
+				this.visMain.stop();
+			} else {
+				this.visMain.start();
+			}
+			return true;
+		} else if (event.code === 'KeyT') {
+			this.visMain.inputHandlers.push(new HexInteractionInputHandler(this.visMain, (hex) => new SimCommandCreateTower(hex, 0)));
+			return true;
+		} else if (event.code === 'KeyB') {
+			this.visMain.inputHandlers.push(new HexInteractionInputHandler(this.visMain, (hex) => new SimCommandBlockTerrain(hex)));
+			return true;
+		}
+		return false;
+	}
+
+	onMouseDown(event: MouseEvent, hex: Hex): boolean {
+		return false;
+	}
+
+	onMouseMove(event: MouseEvent, hex: Hex): boolean {
+		return false;
+	}
+}

src/app/components/game/vis/input/HexInteractionInputHandler.ts

@@ -0,0 +1,39 @@
+import { SimCommand } from '../../sim/commands/SimCommand';
+import { Hex } from '../../util/Hex';
+import { VisMain } from '../VisMain';
+import { InputHandler } from './InputHandler';
+
+export class HexInteractionInputHandler implements InputHandler {
+	private hexCallback: (hex: Hex) => SimCommand;
+	private command: SimCommand | null = null;
+	visMain: VisMain;
+
+	constructor(visMain: VisMain, hexCallback: (hex: Hex) => SimCommand) {
+		this.visMain = visMain;
+		this.hexCallback = hexCallback;
+	}
+
+	onKeyDown(event: KeyboardEvent): boolean {
+		return false;
+	}
+
+	onMouseDown(event: MouseEvent, hex: Hex): boolean {
+		if (!this.command) {
+			return false;
+		}
+		
+		this.visMain.simMain.addCommand(this.command);
+		return true;
+	}
+
+	onMouseMove(event: MouseEvent, hex: Hex): boolean {
+		this.command = this.hexCallback(hex);
+		if (this.command && this.command.check(this.visMain.simMain)) {
+			this.visMain.visLevel.setHoveredHex(hex);
+		}
+		else {
+			this.visMain.visLevel.setHoveredHex(null);
+		}
+		return false;
+	}
+}

src/app/components/game/vis/input/InputHandler.ts

@@ -0,0 +1,7 @@
+import { Hex } from "../../util/Hex";
+
+export interface InputHandler {
+	onKeyDown?: (event: KeyboardEvent) => boolean;
+	onMouseDown?: (event: MouseEvent, hex: Hex) => boolean;
+	onMouseMove?: (event: MouseEvent, hex: Hex) => boolean;
+}